Analogue cable

An analog modem converts the digital signals it receives from the local computer into audio analog signals which can be transmitted as electrical impulses over POTS (Plain Old Telephone Service) to a computer or network. An analog modem was a standard device in most offices, portable PCs and at home. Unlike the digital modems we know today, zealot ISDN and FDDI run, which is a much lower bandwidth than the previous POTS.